Push-pull closure



FIG. 1 is a perspective view of a push-pull closure of the invention;

FIG. 2 is a view from two sides of the push-pull closure of FIG. 1;

FIG. 3 is a view of the push-pull closure of FIG. 1 from the two sides at right angles to the sides of FIG. 2; and,

FIG. 4 is a view from above the push-pull closure of FIG. 1.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a push-pull closure, as shown and described. 